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A Steak in Genomics

Things that come up in the daily operation of a ranch.
PATB
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Postby PATB » Thu Mar 06, 2014 6:02 am

The best genomic test will only explain 50 percent of the variation for a given trait as of the last calibration. When will the AAA start using AHIR data to build genomic prediction equations instead of basing it off a EPD.

I have genomic tested the last 4 years of herd bulls and some of the oldest females and find the lastest 50k test fairly accurate.

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PPRM
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Postby PPRM » Thu Mar 06, 2014 8:34 am

PATB wrote:The best genomic test will only explain 50 percent of the variation for a given trait as of the last calibration. When will the AAA start using AHIR data to build genomic prediction equations instead of basing it off a EPD.

I have genomic tested the last 4 years of herd bulls and some of the oldest females and find the lastest 50k test fairly accurate.


Watching the dispositions at that Bull sale really got me to realizing the genetic component is only part. It was a really high correlation that day as to what I saw. Big outfit and one particular group of Bulls were especially quieter than the scores indicated they should be. Perhaps this group of cattle had been handled a lot by a person differently than the others?

And, some kind of thinner looking bulls with great numbers... Maybe these got sick at some point? Maybe they just didn't wean well?

I think a lot of what they are realizing is still new and they will begin to implement more. I think they are just getting a sizable enough population of results to do more as well.

I was first introduced to this by Zoetis. But it really seems AAA driven. My expectation is that you are going to eventually see a lot of source verified CAB in the CAB program with some tie back to tenderness. Tenderness is the one economically important trait to the CAB program that has never been directly tied back to the feeder or rancher in terms of grid premium or discount.

Marbling seemed only somewhat correlated to the tenderness scores I saw on that test. But it was the best indicator we used to have.
The difference between a rut and a grave is the depth

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Postby PPRM » Thu Mar 06, 2014 8:41 am

The other thing that has me pretty excited is the ability to move the average and also find things out about my cattle I never really knew before. We direct market Beef. Getting an idea on tenderness scores in my cows simply seems huge! We do really well in providing the environment to produce tender Beef. It would be nice to know if I have cows that translate into making this an uphill battle.

In the past, we had only EPD's. While they have helped a lot, pulling the average up by improving the top end of your genetic profiles has a certain generational speed. Another way to move my average is recognizing the bottom end and getting them out of my program. In the past, I had only EPD's and my eye to do this.

My payoff is understandably different than a lot of peoples. I don't have the huge numbers and my market is both direct marketing and the grid for those cattle I take onto Tyson. Depending on the test, $17.00 or even $28.00 feels pretty cheap for the information I feel this could get me.
The difference between a rut and a grave is the depth



PPRM

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Postby HerefordGuy » Wed Mar 26, 2014 1:13 pm

Adapting Breeding Practices to Genomic Technologies
http://steakgenomics.blogspot.com/2014/03/adapting-breeding-practices-to-genomic.html
This new technology opens new doors. But, it will also require that we adapt some of our current breeding and testing practices.

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A Steak in Genomics

Postby HerefordGuy » Tue Apr 08, 2014 1:39 pm

A Steak in Genomics: Use Genomics to Maximize Dairy-Beef Crossbreeding http://steakgenomics.blogspot.com/2014/04/use-genomics-to-maximize-dairy-beef.html

Wulf's and others are developing interesting programs to better utilize dairy cows to produce beef.

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A Steak in Genomics

Postby HerefordGuy » Fri Apr 11, 2014 1:40 pm

Steak in Genomics: Technology Lag We Don't Have Time http://steakgenomics.blogspot.com/2014/04/technology-lag-we-dont-have-time.html

Please comment on my blog about scientific evidence or personal experience that helps you identify the "right traits".
Also feel free to comment about why we see the technology lag in the beef industry.

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A Steak in Genomics

Postby HerefordGuy » Wed Apr 30, 2014 3:52 pm

New blog post about "Green Pastures, Genetics, and Environment."
http://steakgenomics.blogspot.com/2014/04/green-pastures-genetics-and-environment.html

Thanks for your comments on the last post! This post is in response to one of those comments. As always, your feedback is welcomed.

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A Steak in Genomics

Postby HerefordGuy » Mon May 05, 2014 9:07 pm

New blog post at Steak in Genomics guest authored by Mike Kasten. Mike discusses the performance of 3 pens of cattle in the Quality Beef by the Numbers program and recent cattle prices. Data collection is the first step in genetic improvement.
http://steakgenomics.blogspot.com/2014/05/quality-beef-by-numbers-spring-2014.html

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Steak in Genomics

Postby HerefordGuy » Mon May 12, 2014 8:20 pm

New blog post at Steak in Genomics about new Simmental TraitTrac system.
http://steakgenomics.blogspot.com/2014/05/american-simmental-associations-updates.html

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A Steak in Genomics

Postby HerefordGuy » Wed May 14, 2014 8:33 pm

Few updates and questions about my blog.

First off, I have created a Facebook page for my blog and extension program. If Facebook is your thing and you enjoy beef genetics and genomics, please like my Facebook page and share it with your friends. https://www.facebook.com/SteakGenomics

Second, new blog post announcing the Cattlemen's Boot Camp we will be hosting this July. Let me know if you have questions about the Boot Camp.

Third, I have received complaints about being a troll on another message board . (I guess this is karma for me, knabe? :wink: ) I assume those of you interested in my blog, click on the new posts. Those of you not interested in the blog scroll on by. If this is not the case and this thread bothers you, send me a message and I will stop posting about my blog on Ranchers.net.

I appreciate all of the visits to my blog by members of this message board.

Thanks,
Jared Decker

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Steak in Genomics

Postby HerefordGuy » Wed May 21, 2014 9:37 am

Register now for the 2014 Beef Improvement Federation Annual Convention! See blog post for more details.
http://steakgenomics.blogspot.com/2014/05/2014-beef-improvement-federation-annual.html

Have any of you attended BIF before? What did you think? What improvements in the meeting would you like to see?

https://www.facebook.com/SteakGenomics

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A Steak in Genomics

Postby HerefordGuy » Thu May 29, 2014 9:36 am

A Steak in Genomics: Charolais Association will host a tour prior to BIF to discuss development of genomic-enhanced EPDs. https://www.facebook.com/SteakGenomics/posts/1436960666558847


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